Truck.



A. MGALLISTER & T. LOGAN.

TRUCK.

APPLICATION FILED JULY 20, 1912.

Patented June 10, 1913.

fl/4 7/ l 1| d.. l l I I lA H l L l 6 0 P F 0 A a W qh i 9 5 m 0 f r 4 5D\.L @i L w #l #9 2 1 FA/ .M

L m m W .w z ma@ MW Am,

nic.

ALEXANDER IVICALLISTER AND THOMAS LOGAN, 0F HANNA, WYOMING.

TRUCK.

Application filed July 20, 1912.

To al? 107mm, 25 may concern.'

Be it known that we, ALEXANDER MoALLIs- TER and THOMAS Loca-iN, citizensof the United States, residing at Hanna, in the county of Carbon andState of lVyominO, have invented new and useful Improvements in Trucks.of which the following is a specification.

This invention relates to trucks and more particularly to that type oftrucks adapted to transport coal cars up inclines out of mines.

The principal object of the invention is to provide a simple andefficient device of this character which is adapted for receiving coalcars from lateral leads and transporting them up inclines.

A further object of the invention is to provide ay truck of thischaracter having adjustable platforms which will adapt the truck forinclines of different pitch, whereby the cars will be held in horizontalposition at all times.

Further objects of this invention will appear as the following specificdescription is read in connection with the accompanying drawing. whichforms a part of this application and in which Figure 1 is a top planview. Fig. Q is a` side elevation. Fig. 8 is a detail sectional view.

1n Figs. 1 and 2 of the drawings, the track 1 is shown on an inclinewhich may lead to the outside of the mine or to any other suitablepoint. Leading into these tracks at` right angles are other tracks shownat which are arranged in the lateral lead for the transportation of coalcars from said lateral leads to the inclined leading to the outside ofthe mine. The above statement gives the general idea of the manner ofemploying a truck to be hereinafter de scribed in connection with mineshaving inclined shafts and lateral leads connecting the same. 1t willhere be stated that the employment of the truck to be described obviatesthe use of expensive switches and operating the apparatus.

The truck comprises a rectangular frame 3 formed of any suitablematerial and hav ing sufficient strength to withstand the strain towhich it is subjected. This frame is mounted upon wheels el adapted torun upon the rails of the track 1. Extending transversely across theframe are separated Specification of Letters Patent.

Patented June 10,1913.

Serial No. 710,572.

shafts 5 and G, to each of which are pivoted platforms 7 and 8, eachhaving adepending rear piece 9 and which carries suitable mechanism forraising and lowering the rearend of the platform. These platforms havemounted thereon the rails l() and are preferably provided with some formof locking mechanism which will engage the axle of the cars and hold thesame against movement laterally of the truck. A conventional form oflocking mechanism is here shown in the form of pivoted spring pressedpawls or dogs 11 which engage the axles of the car.

The mechanism for raising and lowering the free ends of the platformsmay also consist of any suitable mechanism7 ay conventional structurebeing here shown in the form of a rack bar operated by a worm and wormwheel.

The forward end of the truck has secured thereto a rope or cable 12having a hook 13 at its outer end which is adapted to engage the ties ofthe track 1 or suitable projections la projecting therefrom. This meansis provided in order that the truck may be held in stationary positionwith .its tracks in alinement with the tracks 2 of the lateral leads..Vhen the cars are pushed on to the truck from the lateral leads,)ivoted dogs at the receiving side of the truck will be depressed untilthe car axles pass the same, at which time they will be raised so as tolock the cars against movement laterally on the truck.

that is claimed is l. A car carrying truck comprising a wheeled frame,platforms pivoted at one end to the frai'ne and having their' surfaceinclined with relation to the frame7 tracks carried by the platform, andmeans for raising and lowering the free end of the platform.

A. car carrying truck comprising a wheeled frame, platforms pivoted atone end to the frame and having their surface inclined with relation tothe frame, tracks carried by the platform, and means for locking cars onthe tracks against lateral movement over the platform.

In testimony whereof we affix our signatures in presence of twowitnesses.

ALEXANDER MCALLTSTER. THOMAS LOGAN. Witnesses Enw. MGTEE, Mrs. ED.MCATEE.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of atents,

Washington, D. C.

